Book Image

Web Development with MongoDB and Node - Third Edition

Book Image

Web Development with MongoDB and Node - Third Edition

Overview of this book

Node.js builds fast, scalable network applications while MongoDB is the perfect fit as a high-performance, open source NoSQL database solution. The combination of these two technologies offers high performance and scalability and helps in building fast, scalable network applications. Together they provide the power for manage any form of data as well as speed of delivery. This book will help you to get these two technologies working together to build web applications quickly and easily, with effortless deployment to the cloud. You will also learn about angular 4, which consumes pure JSON APOIs from a hapi server. The book begins by setting up your development environment, running you through the steps necessary to get the main application server up-and-running. Then you will see how to use Node.js to connect to a MongoDB database and perform data manipulations. From here on, the book will take you through integration with third-party tools to interact with web apps. You will see how to use controllers and view models to generate reusable code that will reduce development time. Toward the end, the book supplies tests to properly execute your code and take your skills to the next level with the most popular frameworks for developing web applications. By the end of the book, you will have a running web application developed with MongoDB, Node.js, and some of the most powerful and popular frameworks.
Table of Contents (19 chapters)
Title Page
About the Authors
About the Reviewer
Customer Feedback

The basics of Handlebars

Handlebars is a really simple and easy-to-use templating framework. It works on the principle of interpolation of data within the template. To get an overview of Handlebars, consider the following block diagram:

Here, the compile method accepts the HTML expression templates and results in a function with a parameter.

Let's go through and explore the basic syntax of writing a Handlebars template.

Binding an object to the template

Let's assume that the following JavaScript object is passed to a Handlebars template:

    let context = { 
      name: 'World' 

The template file itself will contain the following markup:

    let source = `<div> 
      Hello {{ name }}! 

The preceding markup contains name as the HTML expression that will be interpolated by its context object.

We need to write the JavaScript method that makes it work, as follows:

    let template = Handlebars.compile(source);
    let output = template(context);

This output variable will...